Hi

This thread

https://community.tp-link.com/en/business/forum/topic/653348

Was closed with a solution, but didn't works.

Tested with Omada 5.15.24.18 and Firmware 2.30 the problem still.

I had to route the LANs internally to get internet

which is wrong because it creates some kind of inter connection between different and 'isolated' LANs

Futhermore, the Omada 5.15.24.18 is unusable with ER605 V2 as shown in this thread

Claro's LINK on WAN1 or WAN2 only works at the lowest speed. NIO's link works perfectly on any port. - Business Community

I had to do a full roll-back to firmware 2.2.6 and Omada 5.14.32.